We need to find the height of the mirror to solve this problem. We know the area and width, so using the formula

, we have

. Then:

Since

is less than 5, the mirror will fit.
2:3
multiply 3 and 12 to get 36
20/36
Simplify
2:3
Hope this helped!
Answer:
65
Step-by-step explanation:
Here is the full question :
Asher owns a square plot of land. He knows that the area of the plot is between 4200 and 4300 square meters. Which of the following is a possible value of the side length of the plot of land? 45, 55, 65, 75
The formula of the area of a square is 
Given the information that the area is between 4200 and 4300 square meters, trial and error would be used to determine which of the options is correct
45^2 = 2025
55^2 = 3025
65^2 = 4225
75^2 = 5625
it can be seen that it is only 65 that is between between 4200 and 4300 square meters.
Answer:
23% error since 70 more people attended then Marcus counted
Step-by-step explanation:
To calculate the percent error:
- We find the difference between the predicted and the actual.
- We divide the absolute value of the difference by the actual recorded value.
- Convert to a percent by multiplying by 100 and adding a % sign.
Marcus counted 230 and 300 actually came.
1. 230-300=-70 but the absolute value is 70
2. 70/300=0.23
3. 0.23(100)=23%
Marcus' estimated had a 23% error.